EP2345873A1 - Dispositif de terminal radio doté d'une unité de commande autonome - Google Patents

Dispositif de terminal radio doté d'une unité de commande autonome Download PDF

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Publication number
EP2345873A1
EP2345873A1 EP10196263A EP10196263A EP2345873A1 EP 2345873 A1 EP2345873 A1 EP 2345873A1 EP 10196263 A EP10196263 A EP 10196263A EP 10196263 A EP10196263 A EP 10196263A EP 2345873 A1 EP2345873 A1 EP 2345873A1
Authority
EP
European Patent Office
Prior art keywords
terminal device
radio terminal
radio
radio module
microcontroller unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10196263A
Other languages
German (de)
English (en)
Inventor
Stefan Bütow
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MC Technologies GmbH
Original Assignee
MC Technologies GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MC Technologies GmbH filed Critical MC Technologies GmbH
Publication of EP2345873A1 publication Critical patent/EP2345873A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H04W52/0232—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal according to average transmission signal activity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to a radio terminal apparatus which consists essentially of a radio module, in particular a GSM / GPRS radio module, and an autonomous superordinate microcontroller unit, the radio terminal device mainly as a wireless data connection module between a device with data connection interface and one of them
  • the autonomous, higher-level microcontroller unit can independently of the radio module inputs and outputs of the radio terminal device as well as internal signals and supply voltages checked, switched on and off to the radio module be switched through.
  • the reliability of the radio terminal device is partly increased, if the program of the radio module should "hang", possibly undefined signal states of the radio module interface can be suppressed when it is switched on and off to the outer interface of the radio terminal device, and it can by software the inrush currents for the radio module power supply and thus for the entire radio terminal device are limited.
  • temperature drift-related measurement errors of the analog-to-digital converter can be compensated by a temperature sensor and switching on of the temperature-sensitive radio module can be controlled in a defined manner.
  • radio terminal devices having a microcontroller unit additional to the radio module have the advantage that user software can be implemented relatively easily in the separate microcontroller unit, that it can be exchanged for a similar one more easily, and that separate monitoring, computation and control processes that are routed via the input / output signal lines of the radio terminal device are usually easier to program and more reliable than if they were run on the radio module as a software process.
  • a disadvantage of such radio terminal devices with and without additional microcontroller unit is the lack of a programmable current limit, as in a digital turn on the radio module or the intended supply voltage for a short time, a large charging current for charging of buffering capacitors to the power supply of the radio modules flows continues disadvantageous in known radio terminal devices that interface signals, in particular serial interface signals of the radio module are routed to the external interface of the radio terminal device directly or directly via a level converter This has the consequence that when switching on and off of the radio module possibly occurring, undefined interface signals connected peripheral devices can cause communication problems and must be interpreted there consuming to remedy them.
  • a radio terminal device and in particular GSM / GPRS radio terminal device for wireless data connections which essentially comprises a radio module, in particular a GSM / GPRS radio module with an antenna interface, in particular an antenna, a microcontroller unit an internal program and data memory and an internal analog-to-digital converter with analog voltage input, controllable by the microcontroller unit voltage regulator for the supply voltage of the radio module, controllable by the microcontroller unit, inhibitable data signal level converter between the radio module and the serial interface signal of the radio terminal Device.
  • the additional microcontroller unit enables safe, controlled switching on, monitoring and controlling of states of the radio module and of external measuring and data signals, even if the radio module "hang" or should be turned off in order to reduce power consumption.
  • the microcontroller unit enables an extended, programmable watchdog function, which contributes substantially to the operational reliability and reliability of the radio terminal device.
  • An integrated, resident data memory enables error code storage and subsequent error analysis even when the radio module is stuck.
  • a temperature sensor for the possibility of additional monitoring and control of the radio terminal device is also integrated with a measured value error correction.
  • radio module Via appropriate data lines between the radio module and the microcontroller unit, functions and states of the radio module can be monitored, evaluated and transmitted via input / output signal lines to a radio terminal interface. Possible failures of the radio module can be detected by the microcontroller unit and, if necessary, corrected by a reset signal or a disconnection and re-connection of the supply voltage for the radio module, without this the input and output signal lines of the radio terminal interface are necessarily disturbed.
  • the serial interface signal of the radio module is not directly connected to the serial interface of the radio terminal, but is a controllable, inhibitable data signal level converter whose respective output signals inhibited via a control signal of the microcontroller unit and in particular can be switched high impedance, so that undefined, erroneous data signals During a power-on or power-off or boot process of the radio module do not reach the external serial interface of the radio terminal, which can lead to a permanent communication failure in connected devices.
  • a controllable voltage regulator for the supply voltage of the radio module can be controlled via a control input by the microcontroller unit programmed on and off, the output voltage and thus its voltage rise is controlled by a pulse width modulated control signal; thus its rising edge (over time) can be programmed programmed.
  • a pulse width modulated control signal For buffering current peaks of the radio module whose supply voltage line is connected to a large capacitor in the milli-farad range, so that a rapid increase in voltage when turning on this supply voltage is always connected directly to a relatively large charging current of the capacitor.
  • the voltage regulator whose output voltage can be controlled by the pulse width modulated control signal, a slow increase of the output voltage and thus the supply voltage of the radio module can be generated, which thus has a controllably limited charging current of the buffering capacitor result. Inrush surges can be avoided.
  • a capacitor type is selected as the buffer capacitor, which is characterized by a particularly low internal resistance with yet very large capacity volume density.
  • Fig. 1 1 shows an exemplary embodiment of a radio terminal device 1 according to the invention, in particular a GSM / GPRS radio terminal device 1, as a block diagram, which has a radio terminal interface 2 and consists essentially of a radio module 20 with an antenna interface 21 and SIM card interface. Interface 22, voltage regulators 40, 50, from a data signal level converter 30 for serial data signals, a temperature sensor 60, an LED unit 70 and a higher-level microcontroller unit 10.
  • the radio terminal device 1 mainly an interface module between a radio terminal Interface 2, to which a device to be monitored or controlled can be connected, and a more distant ausagonist- and control unit, which is wirelessly connected via the antenna interface 21 of the radio module 20 to the radio terminal device 1.
  • the radio module 20 consists of a GSM / GPRS radio module 20
  • the microcontroller unit 10 represents in the radio terminal device 1, the central, higher-level and autonomous measuring and control unit. It contains an internal program and data memory (EEPROM) and an analog-to-digital converter ADC and has various input and output signal lines, which are mainly associated with the radio module 20, the radio terminal interface 2, and components to be driven 30, 40, 60, 70, which will be described below.
  • EEPROM internal program and data memory
  • ADC analog-to-digital converter
  • the control and data lines between the microcontroller unit 10 and the radio module 20 in this case comprise a control signal line RESET for resetting the radio module 20, an Ignition control signal line IGN for turning on the radio module 20 by the microcontroller unit 10, data signal lines DATA for a bidirectional data communication between the microcontroller unit 10 and the radio module 20, a power indicator signal line PW-IND for the detection of an internal functional state of the radio module 20, an input signal line SYNC for transmitting a receive and transmit state of the radio module 20 and a watchdog Signal line AW (awake), which indicates by repeated switching of the binary signal by the radio module 20 whose waking state (no clinging of the program flow).
  • a temperature sensor measurement signal T1 of a temperature sensor 60 can be used by the microcontroller unit 10 for control purposes, for example, to energize and turn on the radio module 20 only within a certain temperature range, which is measured in advance.
  • the ADC placed on the same electronic board, on which the microcontroller unit is placed also allows better temperature compensated voltage measurement by the ADC unit.
  • an internal voltage V1 and an internal voltage V3 of the radio terminal device 1 and a voltage V4 associated with the radio terminal interface line I / O1 can be measured .
  • internal voltages can be measured and evaluated by the analog-to-digital converter ADC of the microcontroller unit 10;
  • these voltage signals are measured by an ADC integrated in the radio module 20.
  • the data memory (EEPROM) integrated in the microcontroller unit 10 measured values and possibly occurring error messages can be stored resident, in order to later receive them either by Radio terminal interface 2 read or transmitted by radio module 20.
  • a supply voltage V2 of the microcontroller unit 10 is provided by a voltage regulator 50, which generates an internal supply voltage V2, in particular for the microcontroller unit, from a power supply voltage V1 of the radio terminal device 1.
  • a supply voltage V3 for the radio module 20 is provided by a voltage regulator 40, which also generates from the power supply voltage V1 of the radio terminal device 1, a supply voltage V3, which is designed by a capacitor 41, in particular in the milli-Farad range and with a low internal resistance is buffered additionally.
  • the capacitor 41 can fulfill two purposes, on the one hand the voltage regulator 40 can be made simpler, since high-frequency current peaks are intercepted by the capacitor 41, on the other hand occur despite high-frequency current peaks of the radio module 20 thereby less voltage fluctuations on the line V3 and thus less electromagnetic emissions.
  • the voltage regulator 40 is controllably designed by a control signal line S3, so that a corresponding supply voltage V3 is generated at the output of the voltage regulator 40 by a pulse width-modulated control signal S3.
  • the supply voltage V3 by the microcontroller unit 10 programmed increase and decrease slowly, so that in the case of turning on the charging current 13 for the connected capacitor 41 can be kept within moderate limits .
  • This also allows the external power supply for Power supply voltage V1 of the radio terminal device 1 are designed easier and cheaper.
  • the radio module 20 in particular the GSM radio module 20 has a SIM card 22 for a radio network connection, in particular for a GSM radio network connection and has an antenna interface 21, which may be embodied in particular as an antenna module ANT.
  • the radio module 20 has a serial interface SD1a, b for data communication, the signals SD1a, b are lifted via a level converter 30 each to a different signal level and are connected as serial interface signal lines SD2a, SD2b with radio terminal interface 2.
  • the level converter 30 is designed as an inhibitable RS232 level converter 30.
  • the control signal input S1 at the level converter 30 is, in particular, a control signal input S1 with an inhibition function which, in the case of a set inhibition signal S1, causes all interface signals SD1a, b and SD2a, SD2b not to be forwarded or switched through, but put into a tri-state state.
  • This can be advantageous in particular when, when the supply voltage V3 of the radio module 20 is switched on or after a reset of the radio module 20, undefined and thus erroneous data output signals are sent on the serial interface line SD1a, b.
  • the LED display unit 70 is controlled by the microcontroller unit 10 via LED control signals S2a, b, c.
  • internal states of the radio terminal device 1 can be displayed by differently colored LEDs and thereby encoded pulsed LED light displays by the LED signals LED1 - LED3 via the radio terminal interface 2

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transceivers (AREA)
EP10196263A 2010-01-15 2010-12-21 Dispositif de terminal radio doté d'une unité de commande autonome Withdrawn EP2345873A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202010000977U DE202010000977U1 (de) 2010-01-15 2010-01-15 Funkterminal-Vorrichtung mit autonomer Steuereinheit

Publications (1)

Publication Number Publication Date
EP2345873A1 true EP2345873A1 (fr) 2011-07-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10196263A Withdrawn EP2345873A1 (fr) 2010-01-15 2010-12-21 Dispositif de terminal radio doté d'une unité de commande autonome

Country Status (2)

Country Link
EP (1) EP2345873A1 (fr)
DE (1) DE202010000977U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102662359A (zh) * 2012-04-11 2012-09-12 华北电力大学 一种新型智能考场管理***
DE202013102950U1 (de) 2013-07-04 2013-08-19 Mc Technologies Gmbh Funk-Terminal für eine Datenverbindung mit einem elektronischen Gerät und mit Netz-Durchleitung
WO2022046083A1 (fr) * 2020-08-28 2022-03-03 Hewlett-Packard Development Company, L.P. Réinitialisation pour jeux de puces radio

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1347272A2 (fr) * 2002-03-18 2003-09-24 WIKON Kommunikationstechnik GmbH Méthode pour la télédétection de changements des valeurs physiques
US20050055432A1 (en) * 2003-09-08 2005-03-10 Smart Synch, Inc. Systems and methods for remote power management using 802.11 wireless protocols
US20090061781A1 (en) * 2007-08-31 2009-03-05 Palm, Inc. Techniques for controlling a radio processor in a mobile computing device
DE202008016873U1 (de) * 2008-12-19 2009-04-02 Scheller, Michael Standard Identifikations-Ortungs- und Sensorik System (SIOS)

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1347272A2 (fr) * 2002-03-18 2003-09-24 WIKON Kommunikationstechnik GmbH Méthode pour la télédétection de changements des valeurs physiques
US20050055432A1 (en) * 2003-09-08 2005-03-10 Smart Synch, Inc. Systems and methods for remote power management using 802.11 wireless protocols
US20090061781A1 (en) * 2007-08-31 2009-03-05 Palm, Inc. Techniques for controlling a radio processor in a mobile computing device
DE202008016873U1 (de) * 2008-12-19 2009-04-02 Scheller, Michael Standard Identifikations-Ortungs- und Sensorik System (SIOS)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102662359A (zh) * 2012-04-11 2012-09-12 华北电力大学 一种新型智能考场管理***
DE202013102950U1 (de) 2013-07-04 2013-08-19 Mc Technologies Gmbh Funk-Terminal für eine Datenverbindung mit einem elektronischen Gerät und mit Netz-Durchleitung
WO2022046083A1 (fr) * 2020-08-28 2022-03-03 Hewlett-Packard Development Company, L.P. Réinitialisation pour jeux de puces radio

Also Published As

Publication number Publication date
DE202010000977U1 (de) 2010-04-22

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